Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Rooseveltite: BiAsO4
Comments: Gray glassy crystalline rooseveltite with purple fluorite. Location: Josef Fluorite Mine, Krune Hora Mountains, near Teplice, Seversocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species